Logical unit options and settings for IBM XIV systems

Logical unit (LU) settings for IBM® XIV® Storage System systems are configurable at the LU level.

Table 1 lists the options that must be set for each LU that is accessed by other hosts. LUs that are accessed by hosts can be configured differently. You can use the IBM XIV Storage System and XIV Nextra™ Storage Management GUI or CLI to change these settings.

Table 1. IBM XIV options and required settings
Option Data Type Range IBM XIV Storage System and XIV Nextra default setting Storwize® V3500 setting
Capacity int 17,179,869,184 bytes (17 GB), up to the total system capacity

OR

Block count
None Any
Notes:
  • Storwize V3500 supports up to 1 PB.
  • LUNs are allocated in 17-GB chunks.
  • Using a block count results in LUNs that are arbitrarily sized, but that still consume multiples of 17 GB.